OnePlus India — No resolution for over a month for Voucher bought for phone, already paid

Hi
I had placed an order for screen protection cover on 01/02/22 but have not received any confirmation yet
Money has already been deducted and I have been calling your customer services for the same from the past a month now. Reference ID[protected], case already escalated on priority now multiple times. No conclusive responses.
It's extremely humiliating and inconvenient.